Monsters of the Paleozoic: sea scorpions
Eupteryds are an extinct group of Paleozoic aquatic arthropods.
The dentition of different species of mammals reflect their feeding habits.
Several analogous types of eyes have developed independently through convergent evolution.
Let’s see how a bear, which the most popular chidren's toy was modelled after, lives in real life.
The American bison is the largest land animal in North America.
Penguins are birds living in the Antarctic and adapted to cold temperature and swimming.
Lemurs only live on the island of Madagascar. Here are a number of fascinating facts about them.
Many freshwater fishes are also popular as food.
A transitional form between fish and tetrapods, or four-limbed vertebrates.